我有一个应用程序，它最终使用 js 从 img 创建 pdf。PDF 数据插入到隐藏输入中。接下来，我将pdf发送到电子邮件地址。
我在通过邮寄发送带有 pdf 数据的隐藏输入时遇到问题。
使用免费服务器时，一切正常，但在目标服务器上未收到隐藏字段。只有文本的隐藏字段工作正常。
我检查了最大文件上传数据（62M）。
HTML 代码：
<div id="formPopUpDiv" style="display:none">
<form method="post" accept-charset="utf-8" name="form1">
<div class="formDiv">
<div class="orderData">
<label>Imię i nazwisko</label>
<input type="text" id="nameTxt" name="name"/>
<label>Numer zamówienia</label>
<input type="text" id="orderNoTxt" name="orderNo"/>
<label>AdresEmail</label>
<input type="text" id="emailTxt" name="email_from"/>
<input name="hidden_data" id='hidden_data' type="hidden"/>
</div>
<div class="orderButtons">
<input type="button" value='Wyślij' onclick="popupForm('formPopUpDiv', 300, 150, true)" id="sendButton" class="sendButton"/>
<input type="button" value='Odrzuć' onclick="hideForm('formPopUpDiv')" id="sendButton" class="sendButtonHide"/>
</div>
</div>
</form>
</div>
JS代码：
if(isValid){
blanket_size(windowname);
form_window_pos(windowname, width, height);
toggle('blanket');
toggle(windowname);
drawDestImage(destinationCanvasArray, false);
var destCanvas = document.getElementById("destCanvasElement");
var dataPDF = destCanvas.toDataURL("image/jpeg");
var pdf = new jsPDF();
pdf.addImage(dataPDF, 'JPEG', 0, 0, 210, 210);//210 is A4 width in mm
//pdf.save("download.pdf");
var pdfUrl = pdf.getDataURLString();
document.getElementById('hidden_data').value = pdfUrl;
//console.log(document.getElementById('hidden_data').value);
var fd = new FormData(document.forms["form1"]);
var xhr = new XMLHttpRequest();
xhr.open('POST', 'upload_data.php', true);
xhr.upload.onprogress = function(e) {
if (e.lengthComputable) {
var percentComplete = (e.loaded / e.total) * 100;
//console.log(percentComplete + '% uploaded');
}
};
xhr.onload = function() {
};
xhr.send(fd);
}
PHP代码：
<?php
$upload_dir = "resultImg/";
$img = $_POST['hidden_data'];
$img = str_replace('data:application/pdf;base64,', '', $img);
$img = str_replace(' ', '+', $img);
$data = base64_decode($img);
$file = $upload_dir . mktime() . ".pdf";
$success = file_put_contents($file, $data);
message $success ? $file : 'Unable to save the file.';
srand((double)microtime()*1000000);
$znacznik = md5(uniqid(rand()));
$mojadres="pawel@sg2.pl";
$tytul=$_POST['name']." ".$_POST['orderNo'];
$tresclistu ="Podkładki";
$nadawca =$_POST['email_from'];
$nadawca_mail=$_POST['email_from'];
$naglowki = "From: $nadawca <$nadawca_mail>'n";
$naglowki .= "MIME-Version: 1.0'n";
$naglowki .= "Content-Type: multipart/mixed;'n";
$naglowki .= "'tboundary='"___$znacznik=='"";
$x="--___$znacznik=='n";
$x .="Content-Type: text/plain; charset='"iso-8859-2'"'n";
$x .="Content-Transfer-Encoding: 8bit'n";
$x .="'n$tresclistu'n";
$plik_nazwa_tmp = $file["tmp_name"];
$plik_nazwa_oryginalna = $file["name"]; ;
$plik_wielkosc = $file["size"];
$x .="--___$znacznik=='n";
$x .="Content-Type: application/octet-stream; name='"attachment.pdf'"'r'n";
$x .="Content-Disposition: attachment;'n";
$x .=" filename='"$tytul'".pdf'n";
$x .="Content-Transfer-Encoding: base64'n'n";
$x .= chunk_split(base64_encode($data));
$x .="--___$znacznik==--'n";
mail($mojadres,$tytul,$x,$naglowki);
?>